News and articles from Topstar

Processing high-temperature plastics requires exceptional care, demanding precise heating, controlled shearing, and reliable thermal management; otherwise, both material performance and production efficiency will be compromised. As a professional injection molding machine manufacturer, we believe that a plastic molding machine must combine the correct screw metallurgy, precise temperature control, robust mechanical design, and safe and reliable… Continue reading Can Topstar Plastic Molding Machine Handle High-Temperature Plastics for Injection Molding?

When customers talk about “difficult-to-process” plastics in injection molding, they refer to materials that tend to break, generate fine powder, and overheat during grinding—problems that lead to contamination and quality issues. The Topstar granulator machine is designed to address these pain points. With screenless grinding technology, low-speed gear-driven cutters, a rapid recycling process, and heavy-duty… Continue reading 6 major advantages of Topstar granulator machine in processing rigid plastics and brittle plastics

Trace amounts of moisture in plastic material granules can lead to surface defects, insufficient weld line strength, and inconsistent dimensions. Hopper dryers address this problem by removing moisture before molding, but not all perform equally well. The right dryer design, control logic, and installation can directly improve the quality and consistency of plastic products. Therefore,… Continue reading How can hopper dryers improve the quality and stability of plastic products?

Precise temperature control is the key to high-quality plastic products. When the cooling system can accurately control the water temperature within the set range, manufacturers can reduce defects, achieve better surface finish, and maintain more stable production cycles. Achieving this reliability doesn’t rely solely on a single component, but rather on the integrated use of… Continue reading How to achieve precise temperature control in the 5-35℃ range on a water chiller?

When you need to injection mold a large, multi-part automotive housing, or a deep, multi-cavity cosmetic container, the two halves of the mold need to move an exceptionally long distance to clear complex cores, inserts, or multi-stage ejection systems. On traditional plastic injection molding machines, you either accept limited mold geometries or purchase larger, slower… Continue reading Is it possible to achieve ultra-long stroke mold opening on a plastic injection molding machine?

Shortening each injection molding cycle by a fraction of a second can reduce robot energy consumption by nearly half, while maintaining the same production output. This is the practical benefit sought in modern injection molding production. Therefore, choosing the right injection robot is not just about specifying parameters; it is a strategic decision that affects… Continue reading Topstar EU Injection Robot vs Traditional Robots: Energy Savings & Speed Differences

Even minute deviations in PET preform wall thickness can lead to unstable stretch blow molding performance, weak areas in the bottle body, weight discrepancies, and high scrap rates. In high-speed production, tolerances are typically only a few millimeters, and the margin for human error is tiny. Therefore, many manufacturers are now turning to electric injection… Continue reading How to use an electric injection molding machine to solve PET preform thickness errors?

In 2026, customers’ criteria for evaluating plastic injection machines will no longer focus solely on peak power, but rather on the total cost of producing parts and their environmental footprint. Therefore, future innovations in plastic injection machine technology will primarily focus on creating smarter, more environmentally friendly, and more adaptable machines. This new research and… Continue reading 2026 R&D Focus: Innovations required in the field of plastic injection machines

In the plastic molding process, the guide rail system of the plastic molding machine determines the mold’s movement, force distribution, and ultimately the stability of the injection molding process over thousands of cycles. Choosing between roller guides and linear guides for your plastic molding machine will impact dimensional accuracy, surface finish, repeatability, uptime, and maintenance… Continue reading Roller Guide vs Linear Guide Plastic Molding Machine: Injection Stability

In mobile phone case manufacturing, mold opening accuracy directly affects product quality and stability. Poor mold opening accuracy can lead to defects such as warping, uneven filling, or unstable part quality. For mobile phone case manufacturers, ensuring the highest level of mold opening accuracy is crucial to reducing waste and maintaining product quality. Therefore, a… Continue reading Fixing Poor Phone Case Mold Opening Accuracy: Mobile Cover Making Machine’s Precision Tuning

For medium-sized plastic product manufacturers, the choice between a 170 ton and a 260 ton machine typically depends on product size and material requirements, which directly impact part quality, production efficiency, and procurement budget. Therefore, we have compared the production capacity, application range, mold requirements, and material compatibility of the 170 ton and 260 ton… Continue reading 170 ton vs 260 ton injection molding machine: Product Capacity & Application Scope

Choosing the right injection molding machine manufacturer is one of the most important decisions for plastic product buyers. The injection molding machine purchased determines part quality, uptime, energy costs, labor requirements, and ultimately impacts time-to-market. Therefore, buyers need clear and practical criteria to evaluate suppliers. You can consider them based on technology, quality control, service,… Continue reading How to Choose a Reliable Injection Molding Machine Manufacturer: 6 Key Criteria